Originally Posted by
p7lot
Nothing wrong with a bit of hiss.
I have tinnitus, so I hear hissing in or out of the aircraft, with or without cans on.
Bose are great........I have them in the car, albeit in the doors.
Maybe cleared to cross is right ....Big Bang Residue
Hiss can be very intrusive.
'Big Bang residue' is residual electromagnetic radiation detected by a suitable 'radio' receiver. So if the headset is receiving radio or BlueTooth, then yes, but if no receiver is involved; the hiss heard is the noise caused by the random nature of electrons flowing through audio circuit components.
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